Biology

8. a random process as to which sperm meets which egg
10. the division of the cytoplasm to the two genetically identical cells
11. a zygote with any type of abnormal chromosome number
13. allows the unknown genotype to be determined
14. only found in males; makes a male a male
19. offspring are exact copies of parent
22. when the zygote has a complete extra set of chromosomes
23. DNA in a cell
24. the phenotypic expression of a gene at one locus alters that of a gene at a second locus
25. when a chromosome gains an extra segment lost from another, nonhomologous, chromosome
26. genetic makeup for a particular trait

1. a gene that can have multiple phenotypic effects
2. 2 alleles each affect the phenotype in seperate, distinguishable ways
3. when a chromosome gains an extra segment lost from its sister chromatid
4. the reproductive cells that transmit genes from one generation to the next
5. when the zygote has an extra, or 3 total copies, of a particular chromosome
6. identical alleles for a particular trait
7. when a chromosomal fragment is lost and reattaches to the same chromosome in the reverse orientation
9. 2 different alleles for a particular trait
12. accounts for 90% of the cell cycle
15. when a chromosomal fragment is lost, thus genes are lost
16. the actual division of genetic material to produce two genetically identical cells
17. _________cells do not display density-dependent and anchorage-dependent inhibition
18. an individuals complete set of chromosomes
20. observable appearance of a particular trait
21. when the zygote has only 1 copy of a particular chromosome